The Banged-Up Car Wins the Race

Golf balls have all those little dents so that they fly faster through the air. So of course someone had to ask, what if we put little dimples all over a car? Mythbusters tested 3 Ford Taurus cars: one normal car, one car covered in smooth clay, and one covered in clay with 1,082 dimples scooped out. While the smooth cars drove 26 miles on a gallon of gas, the dimpled car drove almost 30 miles! On a long trip that saves a lot of gas, if you’re okay with driving a funny-looking car.

Wee ones: What shape is a golf ball?

Little kids: Golf balls don’t all have the same numbers of dimples. Which has more, a ball with 20 dimples or a ball with 30 dimples? Bonus: If the dimpled car could drive 30 miles on a gallon of gas while the regular car drove only 26 miles, how much farther could the dimpled car drive?

Big kids: If you helped smash the dimples into a test car, and you can smash 10 dimples each minute, about how long would it take you to make the 1,082 dimples? Bonus: If your car tank holds 20 gallons of gas, and you’ll drive 4 miles farther on each gallon after banging up your car, how many more miles do you get out of every tank of gas?

Wee ones: A circle, or if you’re talking about 3-D (chunky) shapes, it’s a “sphere.”

Little kids: The 30-dimple ball. Bonus: 4 miles farther.

Big kids: 108 minutes. Bonus: 80 more miles!

Recent Posts

Pick a Math Skill

Pick a Topic